Tag Archives: Splunk

Splunk Discovery Day Moscow 2018

Splunk Discovery Day Moscow 2018. Today I attended the Splunk Discovery Day 2018 conference. It is something like a local equivalent of the famous Splunk .conf. More than 200 people have registered. The event was held in the luxury Baltschug Kempinski hotel in the very center of Moscow with a beautiful view of the Red Square and St. Basil’s Cathedral.

Recently, I have been working more and more with Splunk: I develop connectors, write searches and dashboards, optimize them. Splunk has become the main data visualization tool for me.

Splunk Discovery Day Moscow 2018

Video from the event (27 minutes). This is NOT a complete recording of speeches, but rather some fragments and slides.

At the same time, I make most of data analysis with my own Python scripts. Currently this approach seems more effective. But as for providing final results in a beautiful way and making various notifications, in this sphere Splunk is really convenient and useful. Of course, I can make own a Web GUI application that will do something similar for my tasks, it doesn’t make sense if there is an Enterprise level tool that is very good for this.

My tasks are not quite typical for Splunk clients from Security Teams who look at it in the context of SIEM and SOC mainly. Asset Inventory is actually similar to Business Intelligence: almost all connectors are non-standard, and there are no strict requirements for real time (we operate with days and months, not seconds). We have same approach: “Bring some data to Splunk and get insights from it.” And in this sense, it is great that this event was NOT for the information security experts mainly.

It was mentioned a lot that Splunk is primarily a tool for Business Intelligence. And it’s not just for geeks. Splunk is preparing a mobile application with augmented reality, technologies for recognizing requests in natural language and voice. I think this is all mainly for fun, but the trend for casualty is clear.

Continue reading

Accelerating Splunk Dashboards with Base Searches and Saved Searches

Accelerating Splunk Dashboards with Base Searches and Saved Searches. Let’s say we have a Splunk dashboard with multiple panels. Each panel has its own search request and all of these requests work independently and simultaneously. If they are complex enough, rendering the dashboard may take quite a long time and some panels may even fall by timeout.

Accelerating Splunk Dashboards

How to avoid this? The first step is to understand how the searches are related. May be it is possible to select some base searches, and reuse their results in other child-searches. It’s also possible to get cached results from the “Saved Searches” (another name of Reports in Splunk GUI).

Continue reading

How to create and manage Splunk dashboards via API

How to create and manage Splunk dashboards via API. In the previous post “How to correlate different events in Splunk and make dashboards” I mentioned that Splunk dashboards can be presented in a simple XML form. You can generate it with some script and then copy-past it in Splunk GUI.

Splunk dashboard manage api

However, this manual operations can make the process of debugging dashboards really annoying. It would be much easier to send dashboard XML content to Splunk using Splunk API. And it is actually possible. 🙂

Continue reading

ISACA Moscow Vulnerability Management Meetup 2018

ISACA Moscow Vulnerability Management Meetup 2018. Last Thursday, September 20th, I spoke at ISACA Moscow “Vulnerability Management” Meetup held at Polytechnic University. The only event in Moscow devoted solely to Vulnerability Management. So I just had to take part in it. 🙂

ISACA VM 2018 Alexander Leonov

The target audience of the event – people who implement the vulnerability management process in organizations and the employees of Vulnerability Management vendors. I noticed groups of people from Altex-Soft (Altx-Soft), Positive Technologies and Vulners.

It was very interesting to see such concentration of Vulnerability and Compliance Management specialists in one place. Questions from the audience were relevant and often concerned the weaknesses of competitors. 😉 Here I will make a brief overview of the reports. You can also read here about previous year event at “ISACA Moscow Vulnerability Management Meetup 2017“.

Talking about the audience, there were fewer people than last year, but still a lot:

ISACA VM 2018 auditorium small

The event was recorded. I will add video here as soon as it’s ready.

upd. Video in Russian. My presentation starts at 1:35:56

The event was conducted entirely in Russian, including all the slides. So, maybe I will make English subtitles and voiceover, at least for my part.

Continue reading

Retrieving IT Asset lists from NetBox via API

Retrieving IT Asset lists from NetBox via API. A little bit more about IT Asset Inventory of Internal Network, that your IT team can provide. 😉

I have recently worked with NetBox – an open source IP address management (IPAM) and data center infrastructure management (DCIM) solution developed by well-known cloud hosting provider DigitalOcean.

NetBox api

It’s not really about security, not even a CMDB. But, security team still might be interested in NetBox, because it makes possible to track the hosts in some critical subnet without active scanning, providing great visibility of assets. Here I will show a small example of NetBox API usage.

Continue reading

CyberThursday: Asset Inventory, IT-transformation in Cisco, Pentest vs. RedTeam

CyberThursday: Asset Inventory, IT-transformation in Cisco, Pentest vs. RedTeam. Two weeks ago I was speaking at a very interesting information security event – CyberThursday. This is a meeting of a closed Information Security practitioners group. The group is about 70 people, mainly from the financial organizations, telecoms and security vendors.

CyberThursday 2018 Asset Inventory

These meetings have a rather unique atmosphere. Almost everyone knows each other. The event has no permanent place. It constantly moves between the offices of large Russian companies. The hoster, usually a CISO, can bring his IT and InfoSec colleagues. For others, only “bring a friend” format is available. This helps keep the event focussed and very informal. Participants propose and approve the topics by voting in the chat group. There is no place for marketing, all topics are practical and relevant.

Continue reading

Asset Inventory for Internal Network: problems with Active Scanning and advantages of Splunk

Asset Inventory for Internal Network: problems with Active Scanning and advantages of Splunk. In the previous post, I was writing about Asset Inventory and Vulnerability Scanning on the Network Perimeter. Now it’s time to write about the Internal Network.

Typical IT-infrastructure of a large organization

I see a typical IT-infrastructure of a large organization as monstrous favela, like Kowloon Walled City in Hong Kong. At the beginning it was probably wisely designed, but for years it  was highly effected by spontaneous development processes in various projects as well as multiple acquisitions. And now very few people in the organization really understand how it all works and who owns each peace.

There is a common belief that we can use Active Network Scanning for Asset Inventory in the organization. Currently, I’m not a big fan of this approach, and I will try to explain here the disadvantages of this method and mention some alternatives.

Continue reading